At high altitude we feels the sickness. The reason for sickness may be due to

Options

A. low atmospheric pressure
B. high atmospheric pressure
C. highest temperature
D. low temperature

Answer

**Step-by-Step Solution:**

1. **Understanding High Altitude Effects**: At high altitudes, individuals often experience symptoms such as heart palpitations, fatigue, and nausea. These symptoms are collectively referred to as altitude sickness.

2. **Identifying the Cause**: The primary reason for these symptoms is a decrease in the oxygen level in the body. At high altitudes, the body is not receiving enough oxygen to function properly.

3. **Explaining Oxygen Levels**: The reduction in oxygen levels is due to lower atmospheric pressure at high altitudes. As altitude increases, the atmospheric pressure decreases, which means that there are fewer oxygen molecules available in the air.

4. **Conclusion**: Therefore, the sickness experienced at high altitudes can be attributed to low atmospheric pressure, which leads to insufficient oxygen availability for the body.

5. **Final Answer**: The reason for sickness at high altitudes is due to low atmospheric pressure.

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